| 摘要 |
A light-emitting device (800) comprises a first substrate (100), a second substrate (200), a plurality of first colour temperature light sources (910) and a plurality of second colour temperature light sources (920). A first side (110) of the first substrate (100) has a first periodically protruding structure (710); and a second side (220) of the second substrate (200) has a second periodically protruding structure (720). The plurality of first colour temperature light sources (910) are arranged on the first periodically protruding structure (710) of the first substrate (100). The plurality of second colour temperature light sources (920) are arranged on the second periodically protruding structure (720) of the second substrate (200). The first substrate (100) and the second substrate (200) are combined with or separated from each other through the staggering of the first periodically protruding structure (710) and the second periodically protruding structure (720), being capable of effectively solving the phenomenon of non-uniform colour temperature generated by a combination of light sources of different colour temperatures, and flexibly combining the light sources of different colour temperatures when in use. |
